import { asyncRouterMap, constantRouterMap } from '@/router'
// import { getAllMenus } from '@/api/login';

const permission = {
  state: {
    routers: constantRouterMap,
    addRouters: []
  },
  mutations: {
    SET_ROUTERS: (state, routers) => {
      state.addRouters = routers
      state.routers = constantRouterMap.concat(routers)
    }
  },
  actions: {
    GenerateRoutes({ commit }, menus) {
      return new Promise(resolve => {
        // getAllMenus().then(data => {
        //   const allmu = data.data;
        //   const menuDatas = {};
        //   for (let i = 0; i < allmu.length; i++) {
        //     menuDatas[allmu[i].code] = allmu[i];
        //   }
        //   const accessedRouters = filterAsyncRouter(asyncRouterMap, menus, menuDatas);
        //   commit('SET_ROUTERS', accessedRouters);
        //   resolve();
        // });
        const accessedRouters = filterAsyncRouter(asyncRouterMap, menus)
        accessedRouters.push({ path: '*', redirect: '/404', hidden: true })
        commit('SET_ROUTERS', accessedRouters);
        resolve();
      })
    }
  }
}

/**
 * 通过authority判断是否与当前用户权限匹配
 * @param menus
 * @param route
 */
function hasPermission(menus, route) {
  if (route.authority) {
    if (menus[route.authority] !== undefined) {
      return menus[route.authority];
    } else {
      return false;
    }
  } else {
    return true
  }
}

/**
 * 递归过滤异步路由表，返回符合用户角色权限的路由表
 * @param asyncRouterMap
 * @param roles
 */
function filterAsyncRouter(asyncRouterMap, menus) {
  const accessedRouters = asyncRouterMap.filter(route => {
    if (hasPermission(menus, route)) {
      // console.log(menuDatas[route.authority],route.authority)
      // route.name = menuDatas[route.authority].title;
      // route.meta.title = menuDatas[route.authority].title;
      //route.meta.icon = menuDatas[route.authority].icon;
      if (route.children && route.children.length) {
        route.children = filterAsyncRouter(route.children, menus);
      }
      return true
    }
    return false
  })
  
  return accessedRouters
}

export default permission
